Paint composition



WILLIAITI N. JBLAKEMAN, JR, 0F MOUNT VERNON, YORK,

IEAINT COMPOSITION.

No Drawing.

- matter that is stable in character and can be reduced to an amorphous and impalpable condition. v

The behavior of pigments toward oil-vehicles, when ground therein, is by no means uniform, very many of the combinations thus made, especially those with anhydrous pigments, showing an utter lack' ofspreading power and diffusive opacity; and this marked deficiency greatly detracts from their usefulness.

ll have discovered that all pigments may be ground with an agent which will harmonize and combine with them, and that .the magma so formed, will also be congruent to and combine with all oil vehicles, and possess, when ground therein, great spreadin power, accelerated drylng power and di usion of opacity. The agent which T use to produce these effects is a hydrocarbon or mineral oil of the class obtamed chiefly from the Texas, Gulf, and Californi 01].

The oils in this class, or groug, of which the Texas Oils are regarded as the type, are known commercially as asphaltic base oils and are regarded chemically as i being largely composed of unsaturated hydrocarbons; and either the crude oil, or any of its fractions, distillates, or residuals, may be used in carrying[ out my invention. The specific oil which have emplloyed Is that from the Sour Lake district, exas, preferably the available distillates now on. the market, varying from .92 to .et sp. gr. The specific gravity of the crude oil. varies from .90 to ,92and that of the residuals from .990 to 1.000. I

In carrying out my invention, 1 take the pigment desired for use, and grind it to, paste form in one of the asphaltlc-base hydrocarbons. This composition, or magma, can be placed upon the market, like the present form of pigment ground in oil (which is a mere matter of economical transporta- Specification of Letters Patent;

Patented July T9, 1921i.

. Application filed Junelfi, 1917. Serial No. 174,256.

tion) and, when desired for use as a paint, 1115]? be extended in any suitable oil-vehicle.

nstead, however, of thus grinding the pigment in the asphaltic-base hydrocarbon and then adding the vehicle, the asphalticbase hydrocarbon may be incorporated in the selected vehicle, and the pigment then ground in this mixture; the ultimate result being the same in either case.

The proportion of pigment, used will depend upon its nature and may range, for example, from two hundred per cent. 200% for chalk to three hundred per cent. 230070) for barytes, and to upward of six hundred per cent. (600%) of sublimed compounds of zinc and lead. The precentageof asphalticbase hydrocarbon to be incorporated in the vehicle will also vary with the nature of the pigment and the vehicle, from eightv (8) to twelve (12) per cent, or an average of ten perlcent. (10%), giving good results in genera Any fatty oil, such as linseed oil, may be employed as a vehicle, but very satisfactory and economical compositions can be formed with the non-drying and semi-drying fatty o ls, as in examples'4, 5, 6, 8 and 9 below given. The compositions, while possessing great spreading power and opacity, may be slow in drying, and I prefer, in all cases, to

accelerate the drying action by incorporating another drying oil, preferably tung oil,

or a mixture of tung oil and marine animal.

oil, the result being a very decided reduction in the time required for dryin The use of tung oil in conjunction with t e Texas oil is specifically claimed in application No. 443671, filed February 9, 1921..

. As the asphaltic base hydrocarbons will act as solvents for many of the animal, vegetable and mineral reslduals, waxes, resins, stearins and the like, it may be found advantageous, in some cases, to incorporate a substances in the composition, as they will render the ultimate paint film much more resistant) to atmospheric and "abrasive influences. Thus, naphthalene (C H,,) a derivative of the coal-tar hydrocarbons by reason of its great abundance, would be a most economical agent to use, from three (3) to five per cent. (5%) added to the oilvehicle, or to the asphalt-ic-base hydrocarbon, greatlyincreasing the permanency of the paint-film. i

small proportion of one or more of these v barytes (natural); and thirty (30) parts I 'ten per cent. (10%) drogen, in the presence of catalysts, will be suflicient. The term zinc-lead, as used herein, is intended to designate a class of pig'- ments which have been on the market for many years and are now well-known in the trade by that name. They are all composed of zincoxid and lead sulfate in varying proportions, the one which I prefer consisting, approximately, of per cent. zinc oxid and 40 r cent; lead sulfate.

he oxidation and hydrogenation of the h drocarbons, are claimed in a plications 0s. 443672 and 443673, filed ebruary 9,

The following are examples of compositiolns which will produce satisfactory resu ts:

(1) Eighty parts linseed oil; ten per cent; (10%) asphaltic-base hydrocarbon r.; fi teen per cent. (15%) tung oil; onefiundred and fifty (150) parts zinc-lead (sixty per cent. (60%) zinc oxid and forty r cent. (40%) .lead sulfate).

(2) Eig ty (80) parts linseed'oil; fifteen percent. (15%) as haltic-base hydrocarbon of .9302 sp. gr.; fteen r cent. (15%) tung oil; and one hundre and fifty (150) parts barytes (natural); and thirty (30 parts zinc-lead.

(3) El hty (80) parts linseed oil; fifteen per cent. 15%) asphaltic-base hydrocarbon,

oxidized and hydrogenated, of .9370 sp. gr.;

fifteen (per cent. (15%) tun oil; and one hundre arts zinc-lea (4) Eighty (00) parts soja bean oil; ten per cent. (10%) asphaltic-base hydrocarbon, hydro enated, of .9302 sp. gr.; fifteen per cent. 15%) tungoil; one hundred and fif ty parts barytes; and thirty (30) parts zinc-lead.

(5) Eighty (80) parts cotton-Seed oil; ten per cent. (10%) asphaltic-base hydrocarbon, hydrogenated, of .9302 sp. gr.; fifteen per cent. (15%) tung,oil; fifteen per cent. (15%) menhaden oil; thirty (30) parts chalk; and thirt (30) parts zinc-lead.

(6) Eighty 80) parts cotton-seed oil;

asphaltic-base hydrocarbon,hydrogenated, of .9302 sp. gr.; fif teen r cent. 15%) tung oil; one hundred and fty (150 (30; parts zinc-lead. v

( Elghty (80) parts linseed oil; fifteen .pamt produced whic parts barytes; and thirty thalene; one hundred and fifty (150) parts barytes (natural); and thirty (30) parts zinc-lead.

(9) Eighty (80) parts soy bean oil; fifteen per cent. (15%) tung oil; fifteen per cent. (15%) menhaden oil; ten per cent. (10%) asphaltic base hydrocarbon, hydrogenated,

showing .9302 sp.. gr.; three per cent. (3%

naphthalene; thirty (30) parts powdered serpentine (as talc or asbestos) thirty (30) parts calcium silicate; and thirty (30) parts zinc-lead.

The above mixtures, with the usual quantity of commercial liquid drier added, when spread as a paint, will firm or dry in from two'and one-half (2%) to five (5) hours, and subsequently indurate satisfactorily.

By means of my invention, all the so called inert or inactive substances which,

heretofore, have been used in the painters art as mere adulterants, may be employed as a basis for aint, as the magma ormed by grinding suc substances in the asphalticbase hydrocarbon, not only immediately becomes congruent to all oil-vehicles, but also assists, with its diffusive opacity, in increasing the index of refraction. Opacity is one of the most expensive attributes of the present system of painting as based onthe use of Dutch white lead, because so much more pigment is used than is necessa that the result is a decided economic loss. %hen, however, all inert or inactive matter is brought into active participation in diffusive opacity, as is done b my invention, and a will not deteriorate, the result is a decided. economic gain. The result obtained is very marked with-barium sulfate, natural; the lead salts, such as'the sulfate and carbonate, even in a minute crystalline condition; silica and the silicious m nerals in general, such as calcium and magnesium; and the serpentines, such as talc, asbestosand the like.

Any suitable commercial liquid drier may.

be used. All the oil factors in the oil-vehicle must, for the best effects, be water free. The vehicle herein described is claimed in another application filed herewith and beareral oil of the such compositions I expressly disclaim, as they'did not have for their objectthe formation of an anhydrous system of painting and could not be used for my purpose. I believe myself to be the first to employ the unsaturated hydrocarbons known commercially as a-sphaltic base hydrocarbons, for the purpose of adapting the anhydrous pigments for successful use.

Having thus freely described my invention, I claim:

1. A paint-com )osition comprising a minexas oil type, and an anhydrous pigment.

2. A paint-composition comprising a fatty oil; a mineral oil of the Texas on type; and an anhydrous pigment.

3. A paint-composition comprising afatty oil; a mineral oil of the Texas oil type; tung oil; and an anhydrous pigment.

4. A paint-composition comprising a nondrying fatty oil; a mineral oil of the Texas oil type; and an anhydrous pigment.

5. A paint-composition comprising a nondrying fatty oil; a mineral oil of the Texas oil type; tung oil; and an anhydrous pigment. Y

6. A paint-composition comprising a mineral oil of the Texas oil type; an agent resistant to atmospheric and abrasive influences; and an anhydrous pigment.

7. A paint-composition comprising a mineral oil ofthe Texas oil type, oxidized; and an anhydrous pigment.

8. A paint-composition comprising a mineral oil of the Texas oil type, oxidized; tung oil; and an anhydrous pigment.

9. A paint-composition comprising a mineral oil of the Texas oil type, oxidized and hydrogenated; and an anhydrous pigment.

10. A paint-composition comprising a mineral oil of the Texas oil type, oxidized and hydrogenated; tung oil; and an anhydrous pigment.

WM. N. BLAKEMAN, JR. 

